Project 6-speed

[Norbie]

Well actually tailshaft RPM is determined by road speed and diff ratio; with my current setup I'd have to be doing over 250km/h before the tailshaft sees 8000rpm, but the car is currently geared for up to 330km/h so it could in theory spin a lot faster than that. In reality neither scenario is likely to happen very often (and attempting to approach 300 would likely result in death), but it's nice to have a drivetrain which can cope should the need arise.

[The Witzl]

so you are therefore building a suicide machine?


nice.

[Esteban]

Need arise indeed!

[Norbie]

Hey if you've gotta go, it might as well be at 300km/h while pulling 3 lateral g's right?

[Esteban]

Everyody dies, sometime...


I've been playing too much starcraft...

[MR 1JZ]

Hey if you've gotta go, it might as well be at 300km/h while pulling 3 lateral g's right?

werd to your mother

and im asking because I am curious as to why you would die if the car hit 300km/h?

are you not capable of holding it straight at 300km/h or would the tailshaft explode at 300km/h?

[Norbie]

Lack of aerodynamics = car leaves the ground = crashy badness.

[MR 1JZ]

1. go to autobarn
2. purchase 2 massive T wings
3. fit to car
4. do 300
5. ???
6. no death and plenty profit?

[grahamd]

Norbie - the sliding spline parts on my tailshaft are all Landcruiser Front shaft parts. Most of my front tailshaft is from a Cruiser even the flange bolting onto the gearbox. I have a 2 piece shaft as well but not sure of the diameter - didn't measure that before I fitted it in.

[love ke70]

ill take it to 300 just to find out shall i?

[JustenGT8]

Well strictly speaking tailshaft rpm/kph is governed by 'final drive ratio' which is a combo of gear ratio, diff ratio and wheel diameter

What we both seem to be saying though is your driveline is pretty 'lazy' relatively speaking.

If we have a run, it could take up to 300 to sort out

I wish we could have those high speed run days that are so popular in the UK....at somewhere sensible like an airport though NOT Eastern Creek facing a concrete barrier.

[love ke70]

i have a private stretch of highway you can borrow

note, i do not endorse speed tests on private highways, or any highways for that matter

i think thats a very overkill, even the 4" straight one, its a balanced item that at 8000 rpm is not being shocked...

anywho

whatever works

[Norbie]

Norbie - the sliding spline parts on my tailshaft are all Landcruiser Front shaft parts. Most of my front tailshaft is from a Cruiser even the flange bolting onto the gearbox. I have a 2 piece shaft as well but not sure of the diameter - didn't measure that before I fitted it in.

That's interesting, can I ask how much your setup cost all up? I can't help thinking a Landcruiser tailshaft wouldn't be rated for very high RPM though.

If we have a run, it could take up to 300 to sort out

I wish we could have those high speed run days that are so popular in the UK....at somewhere sensible like an airport though NOT Eastern Creek facing a concrete barrier.

I'd be up for that, but can you imagine what the liability insurance would be like for such an event? Actually after the Eastern Creek incident I doubt any insurance company would touch it.

[JustenGT8]

Yeah sucks...a bunch of ricers have basically ruined it for the rest of us for years. If you could get CAMS on board though it could be a goer

[Forcefed6]

So, now I have a near-bulletproof transmission and tailshaft, so what's the next weak point? I hope it's not the diff, that won't be a cheap thing to upgrade.

I vote the diff axles. The ones that pop into the diff

Cheers
Wilbo

I also vote the same... They will end up looking like this....